To all those with negative responses.
I have Automatic Generator start. For either power loss or pre determined temperature. The AcuRite has a battery backup. If the Acurite site has not had any communication from my Acurite unit for an hour it will send me a notice of the communication loss. It will also inform me when communications are restored. Once communications is restored I will have access to all data during that period of loss.
Like I said earlier I've had Acurite for 6 years without issues and this unit for almost 3 months without ANY issues.
My router has a builtin cell modem equipped with a dual SIM setup. I have both Verizon and AT&T for cell data. If one carrier fails the other will automatically take over. For other instances I also have WiFi over Wan that will allow campground WiFi through my router. I think I've got most bases covered.
I understand what works for you, works for you. I was answering the OP question about temperature monitoring. I was just stating what I have and how I like it. I'm not trying to sway anyone's opinion here.
AcuRite works for me and that's all I care about.